Revamped internal components in Apple's iPhone 5s have allowed the company to cram in a slightly larger battery, resulting in higher projected usage times ? even with the more powerful A7 processor.

Apple has advertised that its new flagship iPhone 5s will boast up to 10 hours of talk time on 3G, and up to 10 hours of LTE Internet use. Both of those numbers are two hours greater than the estimates Apple provided for its predecessor, the iPhone 5.

Remaining battery estimates are largely the same: Apple estimates the iPhone 5s will offer 8 hours of Internet use on 3G, 10 hours on Wi-Fi, 10 hours of video playback, and up to 40 hours of audio playback.

But the iPhone 5s does gain an additional 25 hours of estimated standby time over the iPhone 5. According to Apple, the iPhone 5s can be in standby mode for up to 250 hours before a recharge will be necessary, compared to 225 hours for the iPhone 5.

The improvements are made possible, in part, by a slightly larger battery in the iPhone 5s that offers nearly 10 percent more capacity. Filings with the U.S. Federal Communications Commission, detailed byAnandTech on Wednesday, reveal that the iPhone 5s will sport a 5.96-watt-hour battery with about 1,570 milliampere-hours, compared to a 5.45 Whr, 1,440 mAh battery in the iPhone 5.

The iPhone 5 battery. Source: iFixit

Battery performance and size gains have also been realized in the iPhone 5c over the iPhone 5, with the new, colorful iPhone sporting a 5.73 Whr, 1,507 mAh battery. Apple advertises that the iPhone 5c offers up to 10 hours of talk time on 3G, up to 250 hours of standby time, and up to 10 hours of LTE or Wi-Fi Internet use.

Battery estimates provided by Apple were conducted in August using preproduction iPhone 5s and iPhone 5c units and software. In Apple's tests, features such as auto-brightness and "Ask to Join Networks" are turned off.

Lies. Straight up lies. I love Apple, but I've found that their battery claims with iPhone 5 to be total BS. Everyone I know with an iPhone 5 complains about how it bleeds battery life even when its in sleep mode, even with auto brightness off, and with brightness at 40%. Now with iOS 7, I'm getting 3-4 hours of battery life. Awful.

Lies. Straight up lies. I love Apple, but I've found that their battery claims with iPhone 5 to be total BS. Everyone I know with an iPhone 5 complains about how it bleeds battery life even when its in sleep mode, even with auto brightness off, and with brightness at 40%. Now with iOS 7, I'm getting 3-4 hours of battery life. Awful.

Yes, if you have 100 apps all running location services constantly, you will experience shorter battery life, but that's true of any phone. If you're getting 3-4 hours, you've either set it up so the phone is constantly searching GPS/WiFi/BT/etc or you have a defective phone. Either way, the problem can be fixed.

Independent tests show that Apple's estimates are quite accurate.

"I'm way over my head when it comes to technical issues like this"Gatorguy 5/31/13

4S and 5 are both really poor for battery life, my old 4 was much better. The biggest benefit for Apple producing a bigger screened iPhone would be so they can fit in a larger battery. Having a phone that can last all day shouldn't be too much to ask.

I know this is kinda off topic of this article, but was wondering how early on the 20th I should be able to order the 5s on Apple's website. If I live in the central time zone, does that mean by 2am when its technically the 20th in California that Apple will start taking orders?

I know this is kinda off topic of this article, but was wondering how early on the 20th I should be able to order the 5s on Apple's website. If I live in the central time zone, does that mean by 2am when its technically the 20th in California that Apple will start taking orders?

You'll want to pull an all nighter and an all page refresher on the 19th.

Lies. Straight up lies. I love Apple, but I've found that their battery claims with iPhone 5 to be total BS. Everyone I know with an iPhone 5 complains about how it bleeds battery life even when its in sleep mode, even with auto brightness off, and with brightness at 40%. Now with iOS 7, I'm getting 3-4 hours of battery life. Awful.

Maybe instead of spending your time posting your personal unsubstantiated opinions on Internet forums, you spend some time to learning how to better manage the resources on your iPhone? If you think your iPhone is defective, you should seek help from an Apple Genius for possible replacement, otherwise you're just blowing wind here. I have a sports car that has an EPA MPG rating of 20 miles to the gallon. I CAN get 20 MPG if I drive 'reasonably and carefully', but when I'm having 'fun', it only gets about 8MPG. The fact that I get 8MPG when having 'fun' doesn't mean it's broken or mis-represented by the manufacturer. Running a smart phone, a computer or managing fuel consumption in a car is about managing resources.

I am an Apple fanboy (to qualify), but I hate to say, from the very first week of use with the iPhone 5 last Fall, my battery usage was not up to my expectations. All I want is for the battery to last for one full day, about 16 hrs with basic use (not intense usage). I know how to conserve by shutting down notification services for many apps, turn BT off, shut off all apps working in the background, etc, etc. My phone barely makes it to about 8pm before dying sadly. I was at the Genius Bar 3 weeks after I bought the 5 and after examination, they told me that is the nature of the 5... high battery usage.
Unfortunately I have turned to the alternative of a battery case for evening use.

Low battery life is either A) a defective phone so get it fixed or B) (and the most common) A lot of "vampire" apps running constantly in the background, location services being a big one of the usual suspects.

That even when in sleep mode is the big clue: you're paying for running all those apps 100% of the time, running code draws power, that's the nature of the game. Look under "Privacy", "Location services" and see all the little arrowheads next to apps you have "on": all those are constantly poking at your cell radio and/or gps radio. Power draws.

Also Bluetooth? Off unless you're using it. Aren't in a 4G or LTE area: turn it off. Same with WiFi radios: off unless you're in a hotspot.

Okay professor, so how can I get through my long travel days without my phone dying?

You don't unless you use a battery case or some other method to recharge the phone. Personally I went with the battery case from BoostCase and it does the trick. Great case for protection and more than double my battery life. Without my boostcase my iPhone would be useless most days by around 5PM. Don't listen to him he doesn't even have an iPhone 5 and just likes to talk smack.

You don't unless you use a battery case or some other method to recharge the phone. Personally I went with the battery case from BoostCase and it does the trick. Great case for protection and more than double my battery life. Without my boostcase my iPhone would be useless most days by around 5PM. Don't listen to him he doesn't he have an iPhone 5 and just likes to talk smack.

Low battery life is either A) a defective phone so get it fixed or B) (and the most common) A lot of "vampire" apps running constantly in the background, location services being a big one of the usual suspects.

That even when in sleep mode is the big clue: you're paying for running all those apps 100% of the time, running code draws power, that's the nature of the game. Look under "Privacy", "Location services" and see all the little arrowheads next to apps you have "on": all those are constantly poking at your cell radio and/or gps radio. Power draws.

Also Bluetooth? Off unless you're using it. Aren't in a 4G or LTE area: turn it off. Same with WiFi radios: off unless you're in a hotspot.

The biggest battery drain by far is also bad signal strength with only 1 or 2 bars of reception. That will drain the battery faster than anything if your phone is trying to maintain a connection. People also use their phones in many different ways and it is not unreasonable to expect the battery life to last until at least around 7PM with typical use. I simply decided to go with a battery case and it was a great decision for me since I can now get 2 days use if needed. And even with extremely heavy use I am pretty much guaranteed to have battery power left all day until I go to sleep.

The biggest battery drain by far is also bad signal strength with only 1 or 2 bars of reception. That will drain the battery faster than anything if your phone is trying to maintain a connection. People also use their phones in many different ways and it is not unreasonable to expect the battery life to last until at least around 7PM with typical use. I simply decided to go with a battery case and it was a great decision for me since I can now get 2 days use if needed. And even with extremely heavy use I am pretty much guaranteed to have battery power left all day until I go to sleep.

Good point on signal strength: I used to be able to kill some of my old analog cell phones within maybe an hour or two because I was in the habit of putting them in my (steel) desk drawer while at work. Usage totally varies but an iPhone draining it's battery in sleep mode ("it bleeds battery life even when its in sleep mode") should be solvable. Much like I learned to turn my RAZR's off when I stuck them in a drawer....

How does not owning an iPhone 5 disqualify me from speaking on matters of battery?

I'll answer for you: it doesn't. Go away.

So plug it in on the plane; problem solved.

4GB first gen iPhone begs to differ.

Yea it does. In fact not owning an iPhone 5 pretty much means you don't have a clue what actual day to day usage means to battery life. All you can go by is second hand reports. Owning one is pretty much a requirement to give any validity in this discussion. Just like it is obvious you don't travel by plane much either or you wouldn't have offered that idiotic suggestion to "just plug it in" since outlets are few and far in between.

Oh my God you just can't or refuse to get the point. Sometimes there simply aren't any outlets. Whether it is on a plane, a beach, a mountain or wherever. So stop trying to tell actual iPhone 5 owners to shut up and go away or liars when you don't have a fracking clue what you are even talking about. Your antique 1st gen 4GB iPhone is less capable than even old iPod touches so that hardly comes close to the battery use of an iPhone 5 with LTE that is also activated.

The iPhone 5 gets very decent battery life but it will not last all day under my usage patterns. Not even close in fact. For me and other people that actually use their iPhones a battery case can at least be a good option. Since the battery part is also detachable it means I only have to use it when needed and the rest of the time it is just a normal protective case.

Since you have been talking so positively about the new iPhones will this finally be the model you will actually buy so you can retire your antique 1st gen that you don't even use as a phone. Do you even have any cell phone at all?

Anything "should" be better. That's not the point here; I'm trying to find you situations where you'd be able to charge more through the day. I'm finding it difficult to believe there's nothing, ever, and finding it difficult to believe that you're putting in a solid eight to ten hours of use on the thing in a single day.

4S and 5 are both really poor for battery life, my old 4 was much better. The biggest benefit for Apple producing a bigger screened iPhone would be so they can fit in a larger battery. Having a phone that can last all day shouldn't be too much to ask.

I would think the biggest benefit of a bigger screen would be... A bigger screen.

I know this is kinda off topic of this article, but was wondering how early on the 20th I should be able to order the 5s on Apple's website. If I live in the central time zone, does that mean by 2am when its technically the 20th in California that Apple will start taking orders?

You'll want to pull an all nighter and an all page refresher on the 19th.

It will (almost) surely go on sale 12:01 AM California time on Sept. 20, so 2:01 AM for you.

My 4S lasts a couple of days with moderate use, never had issues at all.

and that's the rub isn't it? Weigh down the phone so the people on the edges of power usage get the battery duration they feel they "should" get while weighing down the rest of us with a too heavy phone? Or just let market forces provide any number of very nice solutions to the more marginal user (Juice packs, the ones mentioned above etc., spare chargers for work and home such as I went for, a car charger as I used with my 3GS and 4's): or like pressure proof cases for the few who want to dive with their phone rather than burdening all of us with what that would weigh and bulk were all phones certified to 100 meters in water depth.

When I backpack my 5 goes in an Otterbox Armor, I wouldn't want that it "should" be capable of withstanding the water, shock and debris of the mountain trails all the time: TOO heavy and bulky. As they say my mileage varies.